Plano, Texas, has had a spike in births this month already — which puts them on track to deliver about double the amount of babies than usual this month. Doctors at the Medical Center of Plano told the Dallas NBC news affiliate that 31 mothers gave birth over just two days at the beginning of the month. The hospital said they typically deliver about 200 babies per month, and at the rate they've been delivering babies, it can't just be a coincidence.

While doctors say it's nearly impossible to pin down the actual reason for the birth rate to nearly double, some people think they know where to point a finger. Nine months ago, "Fifty Shades of Grey" hit theaters, followed by an ice storm that kept people indoors. (See also: Valentine's Day.)

The film, starring Jamie Dornan (as Christian Grey) and Dakota Johnson (as Anastasia), grossed more than $166.1 million in the U.S. alone at the box office, and almost $570.5 million worldwide, according to Box Office Mojo. It brought in close to $85.2 million during its opening weekend back in February — not bad for a film that had a production budget of $40 million.

Will there be another baby boom when the "Fifty Shades" sequel, "Fifty Shades Darker" comes out? It's not slated for release until February 2017, so we'll have to check back around Thanksgiving 2017 to know! The second and third books in the "50 Shades" series by E.L. James are more explicit than the first, so it's likely that fans can expect more nudity in the next film.

A third movie in the series, "Fifty Shades Freed," is also planned, which was announced at CinemaCon in Las Vegas earlier this year. The third installment is tentatively scheduled to be released in February 2018.